Some applications are not sending audio through HDMI

Support Sound
1

I am using Manjaro XFCE. I use two applications for media consumption, Spotube and Stremio. Both of these do not send audio via HDMI or bluetooth. Only laptop speakers and headphone jack seem to work. When they are playing audio, the audio stream in Pulseaudio Volume Control. Firefox, VLC, Audacious seem to work fine (both bluetooth and HDMI audio work).

Can someone kindly help?

2

@abhisek_ch ,
install pulsemixer run it in terminal and select with F3 (Return) your HDMI output
(Stremio worked for me)
( Manjaro Cinnamon supports Spotify, Spotube, Stremio with HDMI out of the box. Installing desktop Spotify in XFCE failed on my laptop.)